Fornia



(No Model.) 2.Sheets'- Sheet 1..

G. V. HEATH 8a A. G. MILZER.

PatentedMay 3, 1892.

GAR VENTILATOR.-

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Wn/msm's albm dzzorney UNITED STATES PATENT Ormcn.

CLARENCE V. HEATH AND AUGUST G. MILZER, OF SACRAMENTO, CALI- I FORNIA.

.CAR-VENTlLATOR.

SPECIFIGATION forming part of Letters Patent NO. 474,247, dated May 3, 1892.

Application filed September 19, 1891. Serial No. 406,251. (No model.)

To all whom it may concern:

Be it known that we, CLARENCE V. HEATH and AUGUST G. MILZER, citizens of the United States, residing at Sacramento, in the county of Sacramento and State of California, have invented certain new and useful Improvements in Car-Ventilators; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,

and to letters of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a side view. Fig. 2 is a bottom plan View with car-bottom partly broken away. Fig. 3 is a side view of car showing panel. Fig. at is avertical transverse section of panel, and Fig. 5 is a detail View.

This invention relates to new and improved means for ventilating railway-cars; and it consists in the novel construction and combination of parts, as hereinafter described, and pointed out in the claims.

In the accompanyingdrawings,illustrating the invention and the manner of its application, the letters A A designate two pipes, which extend alongside the locomotive-boiler, one on either side, terminating at their forward ends at the front of the boiler, each in a bell-mouth a. These pipes run along about centrally of the boiler or under or near the foot-board to the cab, where they are curved downwardly and underneath the tender to the forward car and throughout the entire length of the train. Suitable flexible couplings are provided for said pipes between thecars.

Located underneath each car and connecting the two pipes A A are several boxes B, two being shown for each car. Over each of these boxes in the car-floor is a grating 0, also opening into the car.

D represents one of the cut-offs or valves used in connection with each box B to regulate the amount of air that will be admitted into the cars. They are operated by means of the shafts or rods 6, which extend up through the floor and are provided with spring lever-arms E. These levers may be located under the seats or wherever desired, and are provided each at their free ends with a catch F, which is adapted to engage the teeth of a rack f to hold the valve at the desired adj ustment. It will be seen that as the train moves forward air will enter the bell-mouths of the pipes A A and will be forced backwardly therethrough to the cars, which it will enter through the gratings described.

To provide for the escape of the vitiated and impure air, we use the means now to be described. WVe make a number of the panels between the windowspreferably about eight on each sideof embossed open-work plate, which has an ornamental effect, and at the same time permits the passage of the air through the interstices of the embossed figures. Back of these panels K and between them and the sheathing of the car is an open space G, which communicates with a pipe H, running up on each sideunder the roof of the car. In this space is a false panel I, which, when in normal position, closes the openings in the panels K. This panel I is pivotally hung and has a cord J attached to it, which passes through the panel K, and may terminate in a fancy or ornamental tassel J in the interior of the car. Knots or stops 7r may be formed in the cord, as shown, for holding this panel I closed. Springs j hold them away from the sheathing and prevent their rocking under the movement of the car when they are open. The pipes I-I lead up to the ventilators in the top of the car, which are of ordinary form. These panels may be used with or without the ordinary ventilating-shutters in the top of the car. The impure air passes through the open work ofthe panels K, up through the pipes G, and out through the top, fresh air entering all the time from the pipes A A. The circulation may be regulated by the false panels and by the valves in the pipes, as hereinbefore stated. If the train is running at the ordinary rate, the entire air in the car is changed in from three to five minutes and all smoke and dust carried out. This system is especially advantageous in smoking-cars. It might be suflicient to employ only one of the pipes A A instead of two, as herein described.

ICO

Having described this invention, what we claim as new, and desire to secure by Letters Patent, is

1. The railway-car having panels between its windows provided-with air-passages therein, an air space between said panels and the sheathing of the car, false panels pivoted in said space and arranged to move toward or away from the open-work panels, passages from said air-space to the exterior of the car, and means for operating said panels, substantially as specified.

2. The herein-described apparatus for ventilating railway-cars, comprising the air-supply pipes running throughout the train and terminating at the front in airinlets, the boxes underneath the cars, having interior air-chambers communicating with said sup-.

CLARENCE V. HEATH. AUGUST G. MILZER.

WVitnesses:

CHARLES DIETRICH, FRED .IoHNsoN. 

